Front Back 2 in 1 Round Cubic Zirconia AAA Quality Stud and Ear Jacket Cuff Earrings by Lovey Lovey Style : Stud Earrings. Material : Brass, Cubic Zirconia Back Finding : Post with friction back / 9.25 Sterling Silver Needle Pin Size : Width - 2cm(0.8") / Length - 1.6cm(0.6") Weight : 0.03oz (0.5g *2) (Approx.)